Demoulding structure of water outlet short pipe mould

Abstract

The utility model discloses a demoulding structure of a water outlet short pipe mould, which comprises a fixed mould assembly and a movable mould assembly, the fixed mould assembly is fixed on a machine plate of an injection molding machine, the movable mould assembly is driven by the injection molding machine to be in press fit with and separated from the fixed mould assembly, the fixed mould assembly comprises an upper mould, the fixed mould assembly comprises an upper mould, the movable mould assembly comprises a core fixing plate, and the core fixing plate is fixed on the machine plate of the injection molding machine. A product model cavity is formed between the upper mold and the core fixing plate, and the mold is characterized in that a material pushing plate is fixed below the upper mold, a group of ribs are arranged on a product, the ribs of the product are firmly attached to the material pushing plate, a group of limiting guide rods are arranged on the material pushing plate, and after the product is subjected to injection molding in the product model cavity, under the action of an injection molding machine, the product is subjected to injection molding in the product model cavity. After the material pushing plate is separated from the core fixing plate, the material pushing plate moves along the limiting guide rod, so that a product directly falls off, smooth demolding of the product can be guaranteed by driving mold opening and closing, the complete molding cycle of the product is shortened, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of mold injection molding, in particular to a demoulding structure of a water outlet short pipe mold. Background Art

[0002] The demolding structure of the product generally has ejector pins, push plates, push tubes and other structures in the movable mold for demolding. For example, the Chinese utility model patent with the publication number CN220242292 U discloses a demolding structure for an injection molding pipe assembly mold, including a fixed mold component and a movable mold component, the fixed mold component is fixed on the machine plate, the movable mold component is driven by the injection molding machine to press and separate with the fixed mold component, the fixed mold component includes a fixed mold cavity plate, the movable mold component includes a movable mold cavity plate, a product mold cavity is formed between the fixed mold cavity plate and the movable mold cavity plate, and the product is demolded and separated after injection molding in the product mold cavity, and a diverter is also provided between the fixed mold cavity plate and the movable mold cavity plate, the diverter connects each product mold cavity, the movable mold component has an ejector pin, the ejector pin is connected to the diverter pin, and during demolding, the ejector pin pushes the diverter pin to realize product detachment. The demolding structure of the utility model adopts an ejector pin to push the diverter pin, which shortens the molding cycle and improves production efficiency. This prevents the ejector pin from getting oil on the product, thus improving the product quality. However, for the special structure of the water outlet short pipe product, the product is attached to the fixed mold, and the above structure cannot ensure the demolding of the product.

[0003] To this end, the utility model proposes a demoulding structure of a water outlet short pipe mold, which ensures that the product falls safely and has no ejector marks, thereby reducing the entire molding cycle of the product. Utility Model Content

[0004] In view of the problems existing in the prior art, the purpose of the utility model is to provide a demoulding structure for a water outlet short pipe mold. By inverting the structure of the push plate, driving the mold to open and close can ensure that the product can be demolded smoothly, reducing the entire molding cycle of the product and improving production efficiency.

[0005] The technical solution of the utility model is as follows:

[0006] A demolding structure for a water outlet short pipe mold comprises a fixed mold assembly and a movable mold assembly, wherein the fixed mold assembly is fixed on an injection molding machine plate, and the movable mold assembly is driven by the injection molding machine to press and separate from the fixed mold assembly, wherein the fixed mold assembly comprises an upper mold, and the movable mold assembly comprises a core fixing plate, wherein a product model cavity is formed between the upper mold and the core fixing plate, and wherein the demolding structure comprises a push plate fixed below the upper mold, wherein arc ribs and straight ribs are provided on the product after injection molding, wherein the arc ribs and straight ribs of the product are pasted on the push plate, wherein a group of limiting guide rods are provided on the push plate, and after the product is injection molded in the product model cavity, under the action of the injection molding machine, the push plate is first separated from the core fixing plate, and then the push plate moves along the limiting guide rods, so that the product falls directly.

[0007] Furthermore, the movable mold assembly includes a pad and a lower compound plate, a pad is provided below the core fixing plate, a lower compound plate is provided below the pad, and the lower compound plate is connected to the pad via a set of mold feet.

[0008] Furthermore, the head of the limiting guide rod is installed on the push plate, and the lower end thereof passes through the core fixing plate and the pad, and the core fixing plate is provided with a lower cavity core, wherein the limiting guide rods are arranged at equal distances around the lower cavity core.

[0009] Furthermore, a gasket is sleeved on the tail of the limiting guide rod and fixed by screws.

[0010] Furthermore, it includes a group of positioning columns, which pass through the positioning column holes of the push plate and the positioning column holes of the core fixing plate to limit the push plate and the core fixing plate from shifting, and the positioning columns are arranged at equal distances around the lower cavity core.

[0011] Furthermore, it comprises a group of guide pillars, which are installed on the upper mold, and the upper cavity core is arranged on the upper mold. The guide pillars are arranged equidistantly around the upper cavity core, and the lower part of the guide pillars extends out of the push plate, the core fixing plate and the pad.

[0012] Furthermore, the pad, the core fixing plate and the push plate are fixed to the upper die through a set of limit screws.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] 1) The technical solution of the utility model is adopted, by arranging the push plate between the upper mold and the core fixing plate, a group of limit guide rods are arranged on the push plate, and the limit guide rods extend out of the core fixing plate and the pad plate. After the injection molding is completed, the arc ribs and straight ribs of the product are attached to the push plate. Under the action of the injection molding machine, the push plate is first separated from the core fixing plate, and then the push plate moves along the limit guide rods, so that the product falls directly, and the mold opening and closing can be driven to ensure that the product can be smoothly demolded;

[0015] 2) The demoulding structure of the utility model reduces the entire molding cycle of the product and improves production efficiency;

[0016] 3) The surface of the product demoulded by the demoulding structure of the utility model has no ejector marks and a complete appearance. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of the mold of the utility model;

[0018] Figure 2 It is a schematic cross-sectional view of the demoulding structure of the utility model;

[0019] Figure 3 This is the front view of the demoulding structure of the utility model;

[0020] Figure 4 This is a schematic diagram of the product structure of the utility model.

[0021] In the figure: 1. upper plate; 2. upper die; 3. push plate; 4. positioning column; 5. core fixing plate; 6. pad; 7. lower plate; 8. guide column; 9. limit guide rod; 10. limit screw; 11. gasket; 12. screw; 13. lower cavity core; 14. guide sleeve; 15. die foot; 16. finished product; 17. upper cavity core; 18. arc rib; 19. straight rib. DETAILED DESCRIPTION

[0022] The present invention will be further described below in conjunction with the accompanying drawings, but the scope of protection of the present invention is not limited to the described scope.

[0023] like Figure 1 As shown, a demoulding structure of a water outlet short pipe mold includes a fixed mold component and a movable mold component. The fixed mold component is fixed on the machine plate of an injection molding machine, and the movable mold component is driven by the injection molding machine to press and separate with the fixed mold component.

[0024] like Figure 3 As shown, the movable mold assembly includes a core fixing plate 5, a pad plate 6 and a lower compound plate 7. The pad plate 6 is provided below the core fixing plate 5, and the lower compound plate 7 is provided below the pad plate 6. The lower compound plate 7 is connected to the pad plate 6 through a set of mold feet 15.

[0025] The fixed mold assembly includes an upper composite plate 1, an upper mold 2 and a push plate 3. The upper mold 2 is installed below the upper composite plate 1, and the push plate 3 is arranged below the upper mold 2, and the push plate 3 is located between the upper mold 2 and the core fixing plate 5.

[0026] A product mold cavity is formed between the upper mold 2 and the core fixing plate 5 , and the product 16 is located in the product mold cavity after the injection molding is completed.

[0027] like Figure 4 As shown, the product 16 is provided with a group of arc ribs 18 and a group of straight ribs 19, the arc ribs 18 and straight ribs 19 of the product 16 are pasted on the push plate 3, and the push plate 3 is provided with a group of limiting guide rods 9. After the product 16 is injection molded in the product model cavity, under the action of the injection molding machine, the push plate 3 is first separated from the core fixing plate 5, and then the push plate 3 moves along the limiting guide rods 9, so that the product falls directly.

[0028] like Figure 2 As shown, the head of the limiting guide rod 9 is installed on the push plate 3, and the lower end thereof passes through the core fixing plate 5 and the pad 6. The core fixing plate 5 is provided with a lower cavity core 13, wherein the limiting guide rods 9 are arranged at equal distances around the lower cavity core 13.

[0029] In this embodiment, the number of the 9 limiting guide rods is 4.

[0030] In order to facilitate pulling and pushing the material plate 3 , a gasket 11 is sleeved on the tail of the limiting guide rod 9 and fixed by a screw 12 .

[0031] In order to prevent the push plate 3 and the core fixing plate 5 from shifting, a group of positioning columns 4 are included. The positioning columns 4 pass through the positioning column holes of the push plate 3 and the positioning column holes of the core fixing plate 5 for limiting. The positioning columns 4 are arranged at equal distances around the lower cavity core 13.

[0032] In this embodiment, the number of the positioning posts 4 is four.

[0033] The utility model also includes a group of guide posts 8, which are installed on the upper mold 2. The upper mold 2 is provided with an upper cavity core 17. The guide posts 8 are arranged at equal distances around the upper cavity core 17. The lower part of the guide posts 8 extends out of the push plate 3, the core fixing plate 5 and the pad 6, and plays a guiding role for the push plate 3.

[0034] Furthermore, the guide column 8 is sleeved with a guide sleeve 14 .

[0035] In order to limit the maximum moving position of the push plate 3 , the backing plate 6 , the core fixing plate 5 and the push plate 3 are fixed to the upper mold 2 by a set of limit screws 10 .

[0036] In this embodiment, the number of the limiting screws 10 is 4.

[0037] The mold opening process is as follows:

[0038] After the injection molding of the mold is completed, the arc ribs 18 and straight ribs 19 of the product 16 are pasted on the push plate 3. First, the push plate 3 is separated from the core fixing plate 5 to a certain distance. Under the action of the limit guide rod 9, the push plate 3 moves to ensure that the product can fall safely. Under the action of the limit screw 10, the push plate 3 stops moving. The product falls safely and the next cycle of movement is completed.

Claims

1. A demoulding structure for a water outlet short pipe mold, comprising a fixed mold assembly and a movable mold assembly, wherein the fixed mold assembly is fixed on a machine plate of an injection molding machine, and the movable mold assembly is driven by the injection molding machine to press and separate with the fixed mold assembly, wherein the fixed mold assembly comprises an upper mold (2), and the movable mold assembly comprises a core fixing plate (5), and a product mold cavity is formed between the upper mold (2) and the core fixing plate (5), characterized in that A push plate (3) is fixed below the upper mold (2); arc ribs (18) and straight ribs (19) are provided on the product (16) after injection molding; the arc ribs (18) and straight ribs (19) of the product (16) are adhered to the push plate (3); a group of limiting guide rods (9) are provided on the push plate (3); after the product (16) is injection molded in the product model cavity, under the action of the injection molding machine, the push plate (3) is first separated from the core fixing plate (5), and then the push plate (3) moves along the limiting guide rods (9), so that the product (16) falls directly.

2. The demoulding structure of the water outlet short pipe mold according to claim 1 is characterized in that The movable mold assembly comprises a pad (6) and a lower compound plate (7); the pad (6) is provided below the core fixing plate (5); the lower compound plate (7) is provided below the pad (6); the lower compound plate (7) is connected to the pad (6) via a set of mold feet (15).

3. The demoulding structure of the water outlet short pipe mold according to claim 2 is characterized in that The head of the limiting guide rod (9) is mounted on the push plate (3), and the lower end thereof passes through the core fixing plate (5) and the pad (6); a lower cavity core (13) is provided on the core fixing plate (5), wherein the limiting guide rods (9) are arranged at equal distances around the lower cavity core (13).

4. The demoulding structure of the water outlet short pipe mold according to claim 3 is characterized in that The rear end of the limiting guide rod (9) is sleeved with a gasket (11) and fixed by a screw (12).

5. The demoulding structure of the water outlet short pipe mold according to claim 3 is characterized in that The invention comprises a group of positioning columns (4), wherein the positioning columns (4) pass through the positioning column holes of the push plate (3) and the positioning column holes of the core fixing plate (5) to limit the push plate (3) and the core fixing plate (5) to prevent displacement of the push plate (3) and the core fixing plate (5), and the positioning columns (4) are arranged at equal distances around the lower cavity core (13).

6. The demoulding structure of the water outlet short pipe mold according to claim 1 is characterized in that The invention comprises a group of guide pillars (8), wherein the guide pillars (8) are mounted on an upper mold (2), an upper cavity core (17) is provided on the upper mold (2), the guide pillars (8) are arranged at equal distances around the upper cavity core (17), and the lower part of the guide pillars (8) extends out of a push plate (3), a core fixing plate (5) and a pad (6).

7. The demoulding structure of the water outlet short pipe mold according to claim 2 is characterized in that The pad (6), the core fixing plate (5) and the push plate (3) are fixed to the upper die (2) via a set of limit screws (10).

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